![]() ![]() First Quartile (Q1/25th percentile) : The middle number between the smallest number (not the “minimum”) and the median of the data set.Median (Q2/50th percentile) : The middle value of the data set.Different parts of a boxplot | Image: Michael Galarnykīoxplots are a standardized way of displaying the distribution of data based on a five number summary (“minimum”, first quartile, median, third quartile, and “maximum”). Although boxplots may seem primitive in comparison to a histogram or density plot, they have the advantage of taking up less space, which is useful when comparing distributions between many groups or data sets. A boxplot is a graph that gives you a good indication of how the values in the data are spread out. You need to have information on the variability or dispersion of the data. ![]() More Statistics From Built In Experts What Is Descriptive Statistics?įor some distributions/data sets, you will find that you need more information than the measures of central tendency (median, mean and mode). Notched up meaning code#
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